Diagnostic Aids

Using scan tool, check for proper signal in Drive while wiggling wiring. Ensure all connectors are good. Check the pass-through connector at transmission.

Fig 1: DTC 24 Schematic - 1993 2WD

Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC 24 Flow Chart - 1993 2WD

Courtesy of GENERAL MOTORS CORP.